Rotary engine



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I ROTARY ENGINE. No. 530,982. Patented Dec. 1-8, 1894.

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ROTARY ENGINE.

No .'53.0',982. Patented Dec. 18,1894.

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I WILLARD G. ADAMS, OF WEEDSPORT, NEW YORK.

ROTAiRY ENGINE.

SPECIFICATION forming part of Letters Patent No. 530,982, dated December 18,1894.

Application filed February 8, 1894. Serial No: 499,464. (No model.)

.To all whom it may concern:

Be it known that I, WILLARD G. ADAMS, of Weedsport, in the county of Cayuga, in the State of New York, have invented new and useful Improvements in Rotary Engines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to rotary engines and to that class in which the head which carries the pistons is concentric with the case, and the pistons are not reciprocated during the .rotation of thehead.

with the cut-off of the supply of steam to the steam chamber; in which the case is recessed from the exhaust substantially to the main cutoff in order to prevent any air packing in front of a piston after it has passed theexhaust port; and in which a bearing block, bears adj ustably upon the cut-off, to take up wear, and to prevent leakage.

My invention consists in the several novel features of construction and operation hereinafter described and which are specifically set forth in the claims hereunto annexed.

It is constructed as follows, reference being had to the accompanying drawings, in which- Figure 1, is an elevation, partly in section I of one end of the engine with the face-plate removed. Fig. 2, is a vertical transverse sectional elevation of the engine.

-A is the case, bored out cylindrically, erected upon suitable standards or supports; provided with an offset, -a also cylindrically bored in which the cut-off valve and abutment -bis seated, and -bis a bearing block engaging with the valve and adjustable to take up wear and prevent leakage. Said valve is provided with a recess c-- across its face, and is mounted upon the tubular shaft d which is journaled in the face plates e or in the members -hh' of the stuffing box; said shaft performing the functions of a shaft and a steam conduit from the inletpipe k to the valve, and having a port madapted to register with the inlet pipe, and also with a port -m'-' opening outward through the port m" in the valve, into the steam chamber. Upon 'the shaft -nthe head n' is secured, said shaft being journaled in stuflfiing boxes substantially as shown.

Pistons pare. mounted in radial mortises in the head, the head being provided in its ends with a groove rand r'- are right andleft hand screws engaging with the head and with the pistons, by which they are adjusted; the head being concentric with the bore of the casing.

The casing is provided with an exhaust port s, sbeing the exhaust pipe; and further provided with a groove or recess t- (dotted line in' Fig. 1), extending from the exand its tubular shaft cuts off the supply from the inlet pipe, and the discharge into the steam chamber v substantially simultaneously, so that the inlet conduit is relieved from steam pressure while the engine is not taking steam. It will also' be seen that the parts are here shown as constructed upon the ratio of two to one, in that the cut-off valve makes two revolutions while the head is making one; and that where more pistons ar used the ratio should be higher.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. A rotary engine comprising a case, a

head therein concentric therewith, pistons radially mounted in the head and fixedly adj ustable in their proj ection beyond it, a cut-off valve mounted in a chamber connected to the steam chamber between the pistons, a rotary tubular shaft carrying said valve and proupon and rotated by said shaft, and a recess vided with aport adapted to register with the in the inner wall of the case beyond and exsteam inlet pipe, and a recess in the inner tending from the exhaust port substantially wall of the case beyond and extending from to the steam inlet. 15

5 the exhaust port substantially to the steam In witness whereof I have hereunto set my inlet, in combination. hand this 18th day of October, 1893.

2. The combination with a steam-inlet pipe of a combined shaft and steam conduit hav- WILLARD ADAMS ing a port adapted to register with said pipe, In presence of 10 and a port coinciding with the steam port in O. W. SMITH,

the cut-0E valve, and a cut-0E valve secured HOWARD P. DENISON. 

